Stove



H. B. VAN BENTHUYSEN.

Magazine Stove Patented De'c. 15, 1868;

HENRY BfVAN BENTHUYSEN, OF EMPORIUM, PENNSYLVANIA. l

'Lene/@Parmi ivo. 84,920, ma December 15, 186s.

BASE-BURNING- STOVE.

The Schedule referred to in these Letters Batent and making part of the same.

To all whom it may concern 1 Be it known that I, HENRY B. VAN BENTHUYSEN, of Emporium, in the county of Cameron, State of Pennsylvania, have invented certainvnew and useful Im.- provements in Coal-Stoves for burning-bituminous coal, and consuming the gas and soot thereof; and I do her'eby declarethat the following is a full, clear, and exact description of the construction and operation of the same, reference `being had to the accompanying drawings,` making part of this specification, in which- Figure l is a vertical section of an entire stove, showing the arrangement of the .internal parts.

Figure 2 is a top view of the conical rotary grate inside the casing, with the ratchet, dog, and lever.

Figure 3 is a top view of 1 the iireespace and blower.

Figure 4 is ahorizontal section, taken at x, showing the diaphragm-plate, the ratchet, dog, and lever, for rotating'the internal cylinder, an 'l also showing a spiral segment therein.

Figure 5 is a top view of the top plate and cpver, and elbow for'the smoke-pipe. v

, It is a well-known fact that, in many portions of the United States, bituminous coal is the cheapest fuel to be obtained. The use of this coal for domestic purposes, however, has hitherto been very objectionable, inconsequence of the imperfect construction of the stoves in use, and the consequent imperfect combustion produced byA them, which liberate and allow the escape of a large amount of carboniferous matterL gas and soot-thereby clogging the pipe and iiues, and otherwise causing much annoyance and discomfort, besidesv the large waste of fuel.

Another serious diiculty in the use of bituminous coal for fuel is its tendency to expand when heated, melt together in a mass, choke the draught, and clog the stove.l y

The purpose of my invention is to overcome this difculty, and to remove the most serious objections to this kind of fuel, economize the coal, and make its substance available, by producing a more perfect combustion, consuming the gas and soot.

My stove is constructedfor heating-purposes, adapted to parlors, chambers, emacs, and other places requiring artificial heat.. y

Iam aware that base-burning stoves for anthracite coal have been constructed, and arel in use for heatingpurposes, but they are adapted exclusiyelyto that kind of fuel, and in them bituminous coal cannot be' used.

I am not aware that any base-burning stove has been so constructed to adapt it to the use of bituminous coal.

The nature of my invention consists in constructing and adapting a base-burning stove to the especial use of bituminous coal for fuel, which I construct substantially as follows,fviz:

With an internal cylinder, A,for the reception of coal, and an external casing, B, surrounding the internal cylinder, and enclosing a space, for the passage of the objet, I suspend the cylinder by an encircling-flange,

d, resting onrfriction-rollers D D, secured in a central plate or diaphragm, E, which encircles the cylinder and is secured to the outer casing, and is perforated -at a a, for the draught, and to direct the' heat towards the radiating-surface.

The flange d, which encircles the cylinder, and is securely attached to it, has its periphery formed into a ratchet, F, which is operated on by the dog G and lever H, or other equivalent device, whereby the cylinder is caused to rotate, and loosen the coal it contains; and, to force the coal downwards, I use spirallike segments, e e, securely attached' to the inner surface of the cylinder, and, by rotating the cylinder,

the mass of coal is separated, and forced towards the grate M.

The portion of the casing below the cylinder, used for the dre-space (l, I line with fire-brick, K, oriron, in the usual manner, to protect it from the direct action of the heat.

I make this lining with a series of vertical projections or ribs, L L, on the inner surface, to prevent the body of coal rotating with the grate.

Below the fire-space, I use a conical rotary grate, M, constructed to move in the opposite direction from the cylinder A.

I make the grate lcurved and cone-like, crowning upwards, with a spear-like projection, j, on the centre, penetrating the body of coal, for the purpose of breaking the mass asunder, when Bthe grate andmagazinecylinder are moved in opposite directions.

Also, on the surface of the grate towards its rim, I place a series of spirally-arranged vertical projections, o o, to operate, in connection with the ribs L L, around the {ire-space.

The periphery of the grate is formed into a ratchet, f, which is acted upon by the dog g and lever h, vin order, by its rotary motion, to break up the coke in the lire-space, and the ashes caused more effectually to pass, through the grate, into the ash-pit, J, beneath.

Above 'the re-space, directly on the upper end of the lining,V I place an air-chamberor blower, P, thel inner rim of which is corrugated, anda formed into a series of tuyeres, k 7c, opening into the centre of the flame, above the burning coal, for the purpose of introf duciug an additional supply of oxygen, to combine with the free carbon', and complete the combustion befor the volatile matters escape into the pipe.

The blower is supplied with air by a series of airpassages, R R, passing downwards between the lining and outerl casing, and opening to the surface at S.

".In the outer casing aboveV the lire-space, and below the diaphragm, I insert a series of micawindows, m m, arrangedin the common manner.

Imside of these Windows, I arrange sliding plates, T T, -to cover and protect the micas from discoloration, when a re is in process of kindling, or when the radiation of light is not desirable, and save them'from continual wear when not needed.

When the-fire burns clear,- and the radiation of light is desirable, the plates are easily shifted with the knobs UU, and the light of the fire freely emitted.

Attached to the top ,plate of the stove, extending downwards, and entering the internal cylinder, I use a funnel, V, through which the coal is conveyed to the magazine-cylinder, the lower end of the flmnel being large enough to quite ll the opening in the uppe' end of the cylinder, and yet allow the cylinder to move lit, and passing up through the centre of the cover z and'ornament p, and entering the knob b, to which it is secured.

- By lifting with the knob, the lidY can' be raised' into the concave of the cover z, and retained in that position by a notch, c, in the rod n, and the cover swung to one side, when fuel is to be added.

I do not limit Vmyself to any particular device for rotating the magazine-cylinder and the conicalgrate, although I now adopt the ratchet, dog, and lever. I am aware that a rotary motion can be produced by means of a rack and pinion, a worm-gear, or other device. Nor do I confine myselfto any particular arrangement of the projecting pieces on the inside ofthe magaf, zine nor to any particular arrangement of the proj ect: ing ribs on the inner surface of the fire-space. Nor do I limit myself to any particular arrangement of the projections on the upper surface of the grate ;4 but What I do claim, and desire tosecure by Letters Patent, isv 1. A rotating inside cylinder-magazine, with or without projections on the inner surface, substantially as described.

2. Also, the ratchet, dog, and lever, or other equivalent device, in combination with the rotary magazine substantially as and for the purposes described.l

3. Also, a cone-like rotary grate, provided with verltical projections on its surface, as above described.

4. Also, the projecting ribs on the inner surface of the fire-space, in combination with the vertical projections on the rotating grate, substantiallyas and for the purpose set forth in the foregoing specication.

HENRY B. VAN BENTHUYSEN.

, Witnesses: n

G. METZGER, J. C. JoHNsoN. 

